Question

a) 2(x – 2,5) + x = 7​

Answer 1

2(x – 2,5) + x = 7​

2x-5+x=7

3x=12

x=12/3=4

Answer 2

2(x - 2,5) + x = 7

2х - 5 + х = 7

2х + х = 7 + 5

3х = 12

х = 12/3

х = 4

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2(4 - 2,5) + 4 = 7

8 - 5 + 4 = 7

3 + 4 = 7

7 = 7